Pumping-jack for oil-wells



5N0 Model.

T. G. LANEY. PUMPING JACK FOR OIL WELLS.

No. 586,501. V Patented July 13, 1897.

i 29 My UNITED STATES PATENT OFFICE.

THOMAS G. LANEY, OF LIMA, OHIO.

PUMPING-JACK FOR OIL-WELLS.

SPECIFICATION forming part of Letters Patent No. 586,501, dated July 13,1897.

Application filed November 12, 1896 Serial No. 611,854. (No model.)

To all whom, it 77mg concern:

Be it known that I, THOMAS G. LANEY, a citizen of the United States,residing at Lima, in the county of Allen an d State of Ohio, haveinvented new and useful Improvements in Pumping-Jacks for Oil-W'ells, ofwhich the following is a specification.

This invention relates to the pumping-jacks described and shown inLetters Patent numbered 560,926, issued to me October 20, 1896,

wherein toggle-levers connected with the polish-rod of an oil-well pumpare extended through the medium of a cable passing over pulleys mountedon a suitable support and connected with the jointed extremities of thetogglelevers in such manner that when the cables are drawn or pulled thetoggle-levers are extended and the polish-rod is raised.

The chief objects of my present invention are to simplify the priorconstruction referred to and to provide novel, efficient, and economicalmeans for working a walking-beam to which the polish-rod of an oil-wellpump is pivotally connected, whereby the pulleys and cables employed inmyformer pumpingjack are dispensed with and a less complex constructionand arrangement of parts are provided.

To accomplish these objects, my invention consists in the features ofconstruction and in the combination or arrangement of parts hereinafterdescribed and claimed, reference being made to the accompanyingdrawings, in which Figure l is a side elevation of a pumpingjackconstructed in accordance with my invention. Fig. 2 is a detail planView of the bifurcated link designed to be connected with the polish-rodfor extending the toggle-levers to raise the walking-beam and therebyelevate the polish-rod, and Fig. 3 is a detail front view of thecross-head by which the polish rod is connected with the walking-beam.

In order to enable those skilled in the art to make and use myinvention, I will now describe the same in detail, referring to thedrawings, wherein- The numeral 1 indicates the head of an oil- Well-pumpcasing, on which head is mounted a hollow column 2, which has a lateraldischarge or outlet 3. The polish-rod 4 extends through the hollowcolumn in the usual manner and at its upper end portion passes through apipe or tube 5, having a cross-head 6, journaled in a bearing at theupper side of a walking-beam 7, of any desired construction or type. Theouter end of the Walking-beam is recessed or slotted, as at 8, toaccommodate the pipe or tube 5, and to the upper side of thewalking-beam is applied a plate 9, which is bifurcated to extend overand retain the cross-head 6 in operative position in its bearing. Theplate 9 may be clamped or connected to the walking-beam by a tie-bolt10, one or more. The walking-beam 7 is hinged or pivoted at its innerend to a samson-post 12 of any suitable con struction and of anyrequired height. The walking-beam may be hinged or pivoted to thesamson-post through the medium of an ordinary hinge 13, composed of twoleaves jointed together and secured, respectively, to the walking-beamand post. I do not, however, limit myself to any particular devices forhinging or pivoting the walking-beam to the post, as any means for thispurpose may be employed Which will permit the walking-beam to be swungor vibrated in a vertical plane for the purpose of raising and loweringthe polish-rod.

The polish-rod extends through suitable two-part clamps 14 and 15,arranged, respectively, at the upper and lower ends of the vertical pipeor tube 5, which constitutes part of the cross-head, in such manner thatthe polish-rod can be vertically adjusted and be axially rotatedwhenever necessary. W'hen the clamps are tightened, the polish rod willbe secured in a fixed position relatively to the pipe or tube of thecross-head, and consequently when the latter is raised and lowered bythe walking-beam the polish-rod will be correspondingly moved. I

The under side of the Walking-beam, at the outer end thereof, isprovided with a metallic bearing-plate 16, having a transverse groove17, which is semicircular in cross-section for the purpose of receivingthe circularly-shaped upper end 18 of toggle-levers 19 and 20, jointedtogether at one extremity, as at 21. The lower end of the lever 20 ispivoted, as here shown, to the head 1 of the oil-Well-pump casing, butobviously the lower end of this 4 an engine.

lever can be pivoted to a bracket extending from the head or to anyother support suitable for the purpose in hand.

The pivot 21, which connects the two toggle-levers 19 and 20 together,is adapted to enter and engage the hook-shaped ends 22 of a linkdesigned to connect with a pull-rod (not shown) which in practice isoperated by The link referred to is preferably made of a single piecebent intermediate its extremities toprovide two diverging arms ormembers 23 and 24, which pass at opposite sides of the polish-rod. Thelink is suitably connected witha block or head 24:, having a socket 25,through which passes a screw- .threaded stem 26, having at its outer endan eye 27 or equivalent device designed to connect with the pull-rod ofthe engine. The screw-threaded stem 26 is provided at opposite ends ofthe socket with screw-nuts 28 and 29, whereby the stem can be adjustedlengthwise and locked in any desired position for the purpose of varyingthe lengths of the strokes of the pumping-jack, as will be obvious.

When the link connection between the pullrod and the toggle-levers isdrawn or pulled in one direction, the jointed or pivoted ends of thetoggle-levers will be moved toward the polish-rod, thereby extending thetoggle-levers and forcing the walking-beam to rise for the purpose ofelevating the polish-rod. 011 the back stroke of the link the weight ofthe walking-beam and polish-rod will cause the latter to descend, andthus a reciprocating motion is imparted to the pump-piston.

The height at which the walking-beam is hinged or pivoted may be varied,so that it is e possible for the link connected with the toggle-leversto be placed in such plane that the pull will be approximately in astraight line toward the engine or motive power employed to actuate thepumping-jack. My present invention provides very simplified meanswhereby the walking-beam of an oil-well pump is operated for the purposeof working the pump and a less complicated construction and arrangementof parts are f provided than those described and shown inj my formerpatent referred to.

Having thus described my invention, what I claim is 1. The combinationwith the head of a well- 1 pump casing, a walking-beam, and a polishrodoperated by the walking-beam, of pivots on the head of the pump-casing,jointed toggle-levers engaged with the pivots on 'the l head of thepump-casing and pivotally engageddirectly with said walking-beam, andmeans for connecting the toggle-levers with a pull-rod, substantially asdescribed.

2. The combination of a hinged or pivoted walking-beam, a cross-headpivotally mounted thereupon, a polish-rod adjustable through thecross-head, jointed toggle-levers pivoted, respectively, to thewalking-beam and to a suitable support, and a link connected with thetoggle-levers and having means to connect with a pull-rod, substantiallyas described.

3. The combination of a hinged or pivoted walking-beam, a cross-headpivoted thereupon, a polish-rod engaged with the crosshead, apump-casing having a head, jointed toggle-levers pivoted, respectively,to the walking-beam and to the head of the pumpcasing, and a linkconnected with the togglelevers and having means to connect with apull-rod, substantially as described.

4:. The combination of a hinged or pivoted walking-beam, a polish-rod,connections between the polish-rod and the walking-beam,

jointed toggle-levers pivoted, respectively, to the walking-beam and toa suitable support, and a bifurcated link passing at opposite sides ofthe polish-rod and connected with the toggle-levers, substantially asdescribed.

5. The combination of a hinged or pivoted tween the polish-rod and thewalking-beam,

jointed toggle -1evers pivoted, respectively, to the walking-beam and toa suitable support, and a link having at one end hooks to engage thetoggle-levers and at the other end a lengthwise-adj ustable stem toengage a. pullrod, substantially as described.

In testimony whereof I have .hereuntoset my hand in presence of twosubscribing witnesses.

THOMAS G. LANEY.

Witnesses: V

J AS. W. HALFHILL, J. C. RIDENOUR.

